My kayak is a Pungo 120 from Wilderness System, it came with a removeable dashboard which can protect my camera(s) from splashes when they are placed underneath

On a lake or on the Potomac this is not a big issue as the water there are pretty calm... When I was on the bay or near the ocean couple of weeks ago, the bigger waves, or wakes from the larger boats tended to be more problematic and the dashboard was a definite help